Lady Zhou is a very shrewd old woman. According to common sense, such a person shouldn't say bad things about someone's mother in front of their daughter, especially when the mother and daughter have a good relationship. However, Lady Zhou cannot be judged by common sense.
This is also one of Lady Zhou's common tactics.
In front of Da Niuniu, she disparages Lady Chiang. But her real intent is to belittle Lady Chiang so that Da Niuniu's loyalty lies only with her, just like how Lian Yaya trusts her now.
"Did you just say this one thing?" Lady Chiang asked Da Niuniu again.
"She was badmouthing you, and I got angry. I told her she was talking behind people's backs." Da Niuniu pursed her lips before speaking again.
